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  2. Payment card number - Wikipedia

    en.wikipedia.org/wiki/Payment_card_number

    A payment card number, primary account number (PAN), or simply a card number, is the card identifier found on payment cards, such as credit cards and debit cards, as well as stored-value cards, gift cards and other similar cards. In some situations the card number is referred to as a bank card number. The card number is primarily a card ...

  3. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    Therefore, systems that pad to a specific number of digits (by converting 1234 to 0001234 for instance) can perform Luhn validation before or after the padding and achieve the same result. The algorithm appeared in a United States Patent [ 1 ] for a simple, hand-held, mechanical device for computing the checksum.

  4. Debit card - Wikipedia

    en.wikipedia.org/wiki/Debit_card

    Visa debit cards are uncommon in Hong Kong. The British banking firm HSBC's subsidiary Hang Seng Bank's Enjoy card and American firm Citibank's ATM Visa are two of the Visa debit cards available in Hong Kong. Debit cards usage in Hong Kong is relatively low, as the credit card penetration rate is high in Hong Kong. In Q1 2017, there are near 20 ...

  5. What Is a Credit Card Security Code and Why Is It ... - AOL

    www.aol.com/credit-card-security-code-why...

    A card security code is a three- or four-digit number on the back of credit and debit cards that ensures the authenticity of transactions when a physical card is not presented at the point of sale ...

  6. The 10 best prepaid debit cards you can get without a credit ...

    www.aol.com/finance/10-best-prepaid-debit-cards...

    A prepaid debit card is a payment card that operates differently from traditional debit cards linked to bank accounts. Instead of drawing funds from a bank account, users preload money onto the card.

  7. How To Get Free Debit Cards With Money on Them - AOL

    www.aol.com/finance/free-debit-cards-money-them...

    1 Banking services and debit card provided by The Bancorp Bank N.A. or Stride Bank, N.A., Members FDIC, pursuant to a license from Visa U.S.A. Inc. and may be used everywhere Visa debit cards are ...

  8. Talk:Payment card number - Wikipedia

    en.wikipedia.org/wiki/Talk:Payment_card_number

    Why is the title of this article "Credit card number" when it also talks about debit card numbers? (Stefan2 00:20, 7 June 2007 (UTC)) That's a good question. Likely, part of the reason is that the debit cards use credit card conventions, like the Luhn algorithm. There may also be some similarities in the underlying transaction systems.

  9. Card security code - Wikipedia

    en.wikipedia.org/wiki/Card_security_code

    The card security code is located on the back of Mastercard, Visa, Discover, Diners Club, and JCB credit or debit cards and is typically a separate group of three digits to the right of the signature strip On American Express cards, the card security code is a printed, not embossed, group of four digits on the front towards the right